Guiding attachment for hand planes



A. RICHTER GUIDING ATTACHMENT FOR HAND PLANES Jan. 18, 1955 2 Sheets-Sheet 1 Filed 001;. 23, 1951 Rush Z'er' Jilbek'i' INVENIOR ATTORNEYS o Jan. 18, 1955 A, RICHTER 2,699,805

GUIDING ATTACHMENT FOR HAND PLANES Filed Oct. 23, 1951 2 Sheets-Sheet 2 INVENTO ATTORNEYS United States Patent GUIDING ATTACHMENT FOR HAND PLANES Albert Richter, Lynbrook, N. Y. Application October 23, 1951, Serial No. 252,594 1 Claim. (Cl. 145--20) This invention relates to a guiding attachment for a hand plane and has for its primary object to guide a hand plane along a piece of work.

Another object is to enable the edges of a piece of work to be cut at an angle other than perpendicular to opposite sides of the work.

A further object is to facilitate the rapid bevelling or chamfering of the edges of a piece of work by the use of a conventional hand plane.

The above and other objects may be attained by employing this invention whichembodies among its features a C-clamp adapted to clampingly engage opposite sides of the frame of a hand plane, a guide shoe carried by the clamp and engaging the bottom of the frame of the plane adjacent opposite sides of the blade of said plane, a second guide shoe carried by the clamp beneath the bottom of the plane in spaced relation to the first-mentioned shoe, and the adjacent faces of said guide shoes being adapted to engage selected sides of a piece of work and guide the plane as it is moved along said piece of work.

Other features include disposing the adjacent faces of the guide shoes at angles other than normal to the bottom of the frame of the plane in order to facilitate the cutting of an edge which lies at an angle to opposite faces of a piece of work.

Other features include arranging the adjacent faces of the guide shoes so that they diverge as they recede from the bottom of the frame of the plane to facilitate the cutting of the edge of a piece of work at an angle other than perpendicular.

'In the drawings,

Fig. 1 is a perspective view of the underside of a guiding attachment embodying the features of this invention,

Fig. 2 is a plan view of the guiding attachment illustrated in Fig. 1,

Fig. 3 is a front view of the guiding attachment,

Fig. 4 is a side view of the guiding attachment,

Fig. 5 is a sectional view taken substantially along the line 5-5 of Fig. 3, and

Fig. 6 is a sectional view line 66 of Fig. 3.

Referring to the drawings in detail the attachment comprises a substantially conventional C-clamp designated generally 10 comprising a bight portion 12 and arms 14 and 16. The arm 16 carries a conventional clamp screw 18 which extends through said arm toward the arm 14 and carries a clamping head 20 which is adapted to engage the side of the frame of a conventional hand plane remote from that which is engaged by the arm 14.

Carried by the arm 14 and extending toward the arm 16 of the Ccl-amp 10 adjacent the end thereof remote from the bight portion 12 is a ledge 22 which is adapted to engage the bottom of the frame of a conventional hand plane as illustrated in Fig. 1, and carried by and extending laterally from the ledge 22 is a guide shoe 24, the upper edge of which is notched as at 26 to form pads 28 and 30 which are adapted to engage the bottom of the plane on opposite sides of the blade thereof.

Carried by the arm 16 of the C-clamp 10 adjacent the end thereof remote from the bight portion 12 is a laterally extending bracket 31 carrying a bar 32 which extends outwardly from the C-cl-amp in parallel relation to the screw 18. Mounted for longitudinal adjustment on the bar 32 as by means of a conventional set screw 34 is a sleeve 36, and depending from the sleeve 36 and extending beneath the under side of the bracket 31 is a bracket arm 38 carrying at the end thereof remote from the sleeve taken substantially along the 2,699,805 Patented Jan. 18, 1955 36 a guide shoe 40. Like the guide shoe 24, the guide shoe 40 is provided intermediate its ends with a recess 42 which defines adjacent opposite ends of the guide shoe 40 pads 44 and 46 which are adapted to engage the bottom of the frame of the plane on opposite sides of the blade thereof. In the preferred form of the invention, the adjacent faces 48 and 50 of the guide shoes 24 and 40 diverge as they recede from the bottom of the frame of the plane so that when the plane is used in a bevelling or chamfering operation, the adjacent faces 48 and 50 of the guide shoes 24 and 40 will engage adjacent faces of the work. In this particular form of the invention, the faces 48 and 50 are arranged at from one another and each lies in a plane which extends at an angle of 45 from the bottom of the frame of the plane. It is to be understood, however, that the adjacent faces 48 and 50 may lie in spaced parallel planes to engage opposite side faces of the work and guide the plane along an edge thereof to cut the edge at the desired angle relative to the side faces.

In use it will be evident that with the C-clamp '10 clamped onto the frame of a plane substantially as illustrated in Fig. 1, the pads 28 and 30 of the guide shoe 24 will engage the bottom of the plane on opposite sides of the blade thereof in order to properly support the device in place and to properly orient the guide shoe 24 with relation to the plane. With the clamp thus placed in position, the set screw 34 may be loosened to adjust the guide shoe 40 across the bottom of the plane with the pads 44 and 46 engaging the bottom of the frame of the plane on opposite sides of the blade thereof so as to properly orient the guide shoe 40. The guide shoe as previously described is moved by adjusting the sleeve 36 on the bar 32 to the desired spacing from the guide shoe 24 and when this has been achieved, the set screw 34 may be tightened after which the device is ready for use and the plane may be moved back and forward. over the work to cut the desired bevel.

While in the foregoing there has been shown and described the preferred embodiment of this invent-ion it is to be understood that minor changes in the details of construction, combination and arrangement of parts may be resorted to without departing from the spirit and scope of the invention as claimed.

What -is claimed is:

A guiding attachment for a hand plane comprising a C-clamp adapted to clampingly engage opposite sides of the frame of a hand plane, a ledge carried by one arm of the C-clamp and extending toward the other arm thereof for engaging the bottom of the frame of the plane adjacent one side thereof, a guide shoe carried by the arm of the C-clamp carrying the ledge and adapted to engage the bottom of the frame of the plane on opposite sides of the blade of said plane, a bracket carried by the opposite arm of the C-clamp and extending outwardly from one side thereof, a bar carried by the bracket and extending therefrom in spaced parallel relation to the C- clamp, a bracket arm mounted on said bar for adjustment longitudinally thereon, a second guide shoe carried by the bracket arm and extending beneath the bottom of the frame of the plane in opposed relation to the first mentioned guide shoe, a clamp screw threadable through said opposite arm extending outwardly in parallel spaced relation to said bar, a clamping head on one end of said screw engageable with a side of said plane opposite from said one arm of said C-clamp for clampingly securing sa d C-clamp on said plane, and the adjacent faces of the guide shoes being adapted to engage adjacent sides of a piece of work to guide the plane as it is moved therea ong.

References Cited in the file of this patent UNITED STATES PATENTS 146,208 Shipe Jan. 6, 1874 272,274 Lee Feb. 13, 1883 273,073 Haynes Feb. 27, 1883 466,494 Hart Jan. 5, 1892 515,659 Ourry Feb. 27, 1894 1,432,035 Potter Oct. 17, 1922 2,597,158 Mastripolito May 20, 1952 

